30439421

Names of 30439421

• Cardinal: 30439421 can be written as Thirty million, four hundred thirty-nine thousand, four hundred twenty-one.

Scientific notation

• Scientific notation: 3.0439421 × 10⁷

Factors of 30439421

• Number of distinct prime factors ω(n): 2
• Total number of prime factors Ω(n): 2
• Sum of prime factors: 33090

Divisors of 30439421

• Number of divisors d(n): 4
• Complete list of divisors:
  1 947 32143 30439421
• Sum of all divisors σ(n): 30472512
• Sum of proper divisors (its aliquot sum) s(n): 33091
• 30439421 is a deficient number, because the sum of its proper divisors (33091) is less than itself. Its deficiency is 30406330

Bases of 30439421

• Binary: 1110100000111011111111101₂
• Hexadecimal: 0x1D077FD
• Base-36: I4F7H

Squares and roots of 30439421

• 30439421 squared (30439421²) is 926558350815241
• 30439421 cubed (30439421³) is 28203899721530814015461
• The square root of 30439421 is 5517.1932175699
• The cube root of 30439421 is 312.2329956127

Scales and comparisons

• 30,439,421 seconds is equal to 50 weeks, 2 days, 7 hours, 23 minutes, 41 seconds.
• To count from 1 to 30,439,421 would take you about twenty-three weeks!

  This is a very rough estimate, based on a speaking rate of half a second every third order of magnitude. If you speak quickly, you could probably say any randomly-chosen number between one and a thousand in around half a second. Very big numbers obviously take longer to say, so we add half a second for every extra x1000. (We do not count involuntary pauses, bathroom breaks or the necessity of sleep in our calculation!)

• A cube with a volume of 30439421 cubic inches would be around 26 feet tall.

Recreational maths with 30439421

• 30439421 backwards is 12493403
• The number of decimal digits it has is: 8
• The sum of 30439421's digits is 26
• More coming soon!